#1B573F#1B573F

#1B573F is a dark, moderate teal. Relative luminance 0.074; OKLCH L 41.1% C 0.074 H 163.2°. Best body text is #FFFFFF at 8.46:1 contrast (WCAG AA passes).

Color values

HEX	#1B573F
RGB	rgb(27, 87, 63)
HSL	hsl(156, 53%, 22%)
HSV	hsv(156, 69%, 34%)
CMYK	cmyk(69%, 0%, 27.6%, 65.9%)
CIE-LAB	lab(32.72, -25.73, 8.40)
CIE-LCH	lch(32.72, 27.07, 161.93°)
OKLab	oklab(41.09% -0.0708 0.0214)
OKLCH	oklch(41.09% 0.074 163.2)
XYZ	xyz(4.7569, 7.4078, 5.8808)
Luminance	0.0741 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B573F #571B33

analogous

#1B5721 #1B573F #1B5157

triadic

#1B573F #3F1B57 #573F1B

tetradic

#1B573F #211B57 #571B33 #51571B

square

#1B573F #211B57 #571B33 #51571B

split-complementary

#1B573F #571B51 #57211B

monochromatic

#071711 #0D281D #1B573F #298661 #38B483

Accessibility & contrast

On white

8.46

#1B573F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#1B573F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B573F

8.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B573F	#FFFFFF	#000000	##FFFFFF
##1B573F	1.00	8.46	2.48	8.46
#FFFFFF	8.46	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#55503E

Deuteranopia (green-blind)

#4D4B41

Tritanopia (blue-blind)

#005750

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1b573f;
/* rgb */ color: rgb(27, 87, 63);
/* oklch */ color: oklch(41.1% 0.074 163.2);

Tailwind

colors: {
  custom: {
    50: '#5f8774',
    500: '#1b573f',
    950: '#000000',
  },
}

SCSS

$custom: #1b573f;
$custom-light: #5f8774;
$custom-dark: #000000;

JSON

{
  "hex": "#1b573f",
  "rgb": {
    "r": 27,
    "g": 87,
    "b": 63
  },
  "hsl": {
    "h": 156,
    "s": 52.632,
    "l": 22.353
  },
  "oklch": {
    "l": 0.41094,
    "c": 0.07397,
    "h": 163.2
  },
  "luminance": 0.07408
}

Semantic roles & 50–950 ramp

primary

#1B573F

secondary

#8D415F

accent

#4C85DC

background

#F5F8F7

surface

#EAEFED

border

#C6CAC8

text

#050B08

muted

#797C7B

Preview Lab

Preview with #1B573F

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →